Stainless Steel 310 Flanges manufacturer in India

Gost 12815 ASTM A182 F310 SORF Flange and AISI 310 Weld Neck Flange supplier in Mumbai

What is Stainless Steel 310 Flanges?
The Stainless Steel 310 grade material is an alloy that consists of a high amount of chromium and nickel. The contents of chromium is around 24% and that of nickel is 19% in the chemical composition, which gives it different unique properties. The Stainless Steel 310 Flanges are mainly used for high temperature services and they can easily be used in environments that are prone to high corrosion. It is because the SS 310 grade material is known for its high temperature tolerance and enhanced resistance to oxidation corrosion. It comes with a melting point of 1402 degrees C, which makes the flanges perfect for various high-temperature services.
The Stainless Steel 310 Flanges have similar strength as that of 304 and 316 grades of stainless steel material. It possesses the min yield strength of 205 MPa and min tensile strength of 515 MPa. It also has a lower density compared to the 304 grade material with a good elongation of 40%. The Stainless Steel 310 Flanges are available in different types and faces, and each of them serve varied purposes according to their structure. These are used for different applications in the industries like the petrochemical, chemica, power plants, energy, architecture, food processing, and many more.
Some common benefits offered by the Stainless Steel 310 Flanges include:

• Corrosion resistance
• Functional strength
• Durability
• Higher service life even in extreme conditions
• High fabricability
• High temperature strength
• Excellent oxidation resistance

With all these features and the fact that the Stainless Steel 310 Flanges are available at an affordable price, they are an excellent choice for various industries.

ASTM A182 F310 Blind Flange Vs SA182 F310 Slip On Flange
The ASTM A182 F310 Blind Flange is a type of flange made of 310 grade material and they are used for high temperature applications across several industries world wide. They look like a plate with bolts holes around it and are particularly designed to stop the flow inside the pipe or seal the nozzle of an unused valve. They promote easy access inside the pipe for maintenance, inspections, and modifications. These flanges are also used on those ends of the piping system that is not under frequent usage
The SA182 F310 Slip On Flange is a forged flange which comes with easy assembling and installation. They should be slid inside the pipe before they are welded to the piping system. Double welds are done on the inner and outer side to ensure a leak-proof connection. They are used in less critical applications or in those connections that have a very little risk of leakage.

310 Stainless Steel Socket Weld Flange Vs A182 Gr F310 Weld Neck Flange
Both the 310 Stainless Steel Socket Weld Flange and the A182 Gr F310 Weld Neck Flange are made with the same stainless steel material of grade 310, and hence they possess similar features. However, due to the difference in their structure and welding methods, there are some differences between them.
The 310 Stainless Steel Socket Weld Flange are connected to the main pipe only with one fillet weld and hence they are not taken for critical applications. These flanges are mostly found in small bore lines. It is important that the thickness of the connecting pipe is properly defined to ensure the bore length is accurate.
Talking about the A182 Gr F310 Weld Neck Flange, it is also known as a high-hub flange because of the neck that is capable of moving the pipe tension. It helps to reduce the pressure gathered at the bottom of the flange. It is used for high temperature connections with high pressure. Thus, they can be used for some critical applications.

SS 310 Flanges vs ASTM A182 F310h Flanges
SS 310 Flanges have various subgrades and all of them possess excellent high temperature properties along with good weldability and ductility. The ASTM A182 F310h Flanges is a subgrade of the 310 grade with a slightly different chemical composition. It has a restricted carbon content, and it is a great choice for various high temperature applications. It can be defined as the high carbon version. Due to this variation in their chemical composition, they also possess different mechanical properties. The ASTM A182 F310h Flanges offers good oxidation resistance compared to the 310 grade.

Stainless Steel 310 Flanges manufacturer in India

Manufacturer of JIS B2220 310 Stainless Steel Slip On Flange and ASTM A182 F310 Blind Flange India is capable of distributing in excess of 1000 tonnes per annum

Table of Content

• Stainless Steel 310 Flanges Specification List
• ASTM A182 F310 Flange Dimensions
• 310 Stainless Steel Flange Pressure Rating
• Weight Chart of UNS S31000 Flanges
• ASME SA182 F310 Flange Bolting Chart
• Stainless Steel 310 Flange Price List
• Production Process of 310 SS Flanges
• SS 310 Flanges Chemical Composition
• ASTM A182 F310 Flanges Mechanical Properties
• 310 Stainless Steel Flanges Equivalent Grade

• Various Types of Stainless Steel 310 Flanges
• SA182 Gr F310 Flange Tolerance Chart In Mm
• 310 SS Flange Bolt Torque Chart
• Material Testing of 310 Stainless Steel RTJ Flange
• Stainless Steel Grade 310 Flange Application
• 310 Stainless Steel Blind Flange Dimensions
• SS 310 Slip On Flange Dimensions
• Dimensions Table of ASTM A182 F310 Weld Neck Flanges

Stainless Steel 310 Flanges Specification List

Size Chart	1/2″(15 NB) to 48″ (1200NB)
Pressure Rating Chart	600 LBS, 150 LBS, 2500 LBS, 900 LBS, 300 LBS, 1500 LBS
DIN Pressure Calculation	25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40
Coating	Anti-rust Paint, Yellow Transparent, Zinc Plated, Oil Black Paint, Cold and Hot Dip Galvanized
JIS	16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
UNI / EN	16Bar 6Bar 40Bar 10Bar 25Bar
Manufacturer of Connect Type/ Flange Face Type	FF, RF, RTJ, Small Tongue, LJF, Large Tongue & Groove
Common Types By Manufacturer	Threaded / Screwed / Forged / Plate
Equipment	Bending machine, Press machine, Sand-blasting machine, Pushing Machine, electric bevelling machine etc
Standards Provided By Manufacturer	BS1560-3.1, API7S-43, ISO70051, MSS S44, ANSI/ASME B16.5, B16.47 Series A & B, DIN, API7S-15, JISB2220, API605, B16.48, ASME/ANSI B16.5/16.36/16.47A/16.47B, BS4504, BS 10, EN-1092, EN1092
Origin	West Europe / Japan / Indian / USA / Korean
Manufacturer of	GOST, ANSI DIN, UNI, BS, JIS, AS2129, SABS, NFE, AWWA, EN etc.
Test	Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine
Production technique Used By Manufacturer	Heat treated, Forged and machined

ASTM A182 F310 Flange Dimensions

Normal Pipe Size (NPS) Of Flanges	(I.D.) Inside Diameter	Thickness Of Raised Face (RF) (T)	Outside Daimeter (O.D.)	Raised Face (R)	RF (Raised Face)	Holes Of Bolts (B)	H	T1	Thickness Of Flat Face (FF) (T2)	BC (Circle Of Bolt)	Bolts Holes Numbers
1/2	0.88	0.88	3.75	1.38	.063	0.62	1.50	0.50	0.82	2.62	4
1	1.36	1.06	4.88	2.00	.063	0.75	2.12	0.63	1.00	3.50	4
3/4	1.09	1.00	4.62	1.69	.063	0.75	1.88	.056	0.94	3.25	4
1-1/4	1.70	1.06	5.25	2.50	.063	0.75	2.50	0.69	1.00	3.88	4
2	2.44	1.31	6.50	3.62	.063	0.75	3.31	0.82	1.25	5.00	8
1-1/2	1.95	1.19	6.12	2.88	.063	0.88	2.75	0.75	1.13	4.50	4
2-1/2	2.94	1.50	7.50	4.12	.063	0.88	3.94	0.94	1.44	5.88	8
3	3.57	1.69	8.25	5.00	.063	0.88	4.62	1.06	1.63	6.62	8
3-1/2	4.07	1.75	9.00	5.50	.063	0.88	5.25	1.13	1.69	7.25	8
4	4.57	1.88	10.00	6.19	.063	0.88	5.75	1.19	1.82	7.88	8
5	5.66	2.00	11.00	7.31	.063	0.88	7.00	1.32	1.94	9.25	8
18	18.18	3.50	28.00	21.00	.063	1.38	21.00	2.32	3.44	24.75	24
6	6.72	2.06	12.50	8.50	.063	0.88	8.12	1.38	2.00	10.62	12
8	8.72	2.44	15.00	10.62	.063	1.00	10.25	1.56	2.38	13.00	12
10	10.88	2.62	17.50	12.75	.063	1.12	12.62	1.82	2.56	15.25	16
12	12.88	2.88	20.50	15.00	.063	1.25	14.75	1.94	2.82	17.75	16
14	14.14	3.00	23.00	16.25	.063	1.25	16.75	2.06	2.94	20.25	20
20	20.20	3.75	30.50	23.00	.063	1.38	23.12	2.44	3.69	27.00	24
16	16.16	3.25	25.50	18.50	.063	1.38	19.00	2.19	3.19	22.50	20
22	22.22	4.00	33.00	25.25	.063	1.63	25.25	2.57	3.94	29.25	24
24	24.25	4.19	36.00	27.25	.063	1.62	27.62	2.69	4.13	32.00	24

Manufacturing ANSI B16.5 Stainless Steel 310 Socket Weld Flange and SS DIN 1.4845 Reducing Flanges for Shipyards and Chemical Process Plants

310 Stainless Steel Flange Pressure Rating

Temperature °F	Class 150	Class 600	Class 1500	Class 400	Class 900	Class 300	Class 2500
-20 to 100	275	1440	3600	960	2160	720	6000
300	205	1080	2700	720	1620	540	4500
200	230	1200	3000	800	1800	600	5000
400	190	995	2485	660	1490	495	4140
600	140	875	2185	580	1310	435	3640
650	125	860	2150	575	1290	430	3580
500	170	930	2330	620	1395	465	3880
700	110	850	2125	565	1275	425	3540
750	95	830	2075	555	1245	415	3460
850	65	790	1980	530	1190	395	3300
800	80	805	2015	540	1210	405	3360
900	50	780	1945	520	1165	390	3240
950	35	765	1910	510	1145	380	3180
1000	20	640	1605	430	965	320	2675
1100	20	515	1285	345	770	255	2145
1150	20	400	995	265	595	200	1655
1050	20	615	1545	410	925	310	2570
1200	20	310	770	205	465	155	1285
1250	20	225	565	150	340	115	945
1300	20	170	430	115	255	85	715
1400	20	95	240	65	145	50	400
1350	20	125	310	80	185	60	515
1450	15	70	170	45	105	35	285
1500	10	55	135	35	80	25	230

Weight Chart of UNS S31000 Flanges

NPS (Nominal Pipe Size)	Loose (Lap Joint)	NPT (Threaded)	SORF (Slip On)	BLRF (Blind)	SWRF (Socket Weld)	WRNR (Weld Neck)
½	1	1	1	2	2	2
1	2	2	2	2	2	3
1¼	3	3	3	3	3	3
¾	2	2	2	2	2	2
1½	3	3	3	4	3	4
2½	8	8	8	7	8	10
2	5	5	5	5	5	6
3	9	9	9	9	9	11.5
4	13	13	13	17	13	16.5
3½	11	12	11	13	11	12
5	15	15	15	20	15	21
8	30	30	30	47	30	42
6	19	19	19	27	19	26
10	43	43	43	70	43	54
24	275	220	220	430	220	268
14	105	90	90	140	90	114
12	64	64	64	123	64	88
16	140	98	106	180	98	140
20	195	165	165	285	165	197
18	160	130	130	220	130	165
22	245	185	185	355	185	225

ASME SA182 F310 Flange Bolting Chart

Nominal Pipe Size	# Bolts or Studs	Dia of Bolts or Studs	Length of Stud		# Bolts or Studs	Dia of Bolts or Studs	Length of Stud		# Bolts or Studs	Dia of Bolts or Studs	Length of Stud
			1/16 RF	RTJ			1/16 RF	RTJ			1/4 RF	RTJ
1/2	4	0.50	2-1/4	–	4	0.50	2-1/2	3	4	0.50	3	3
3/4	4	0.50	2-1/2	–	4	0.63	3	3-1/2	4	0.63	3-1/2	3-1/2
1	4	0.50	2-1/2	3	4	0.63	3	3-1/2	4	0.63	3-1/2	3-1/2
1-1/4	4	0.50	2-3/4	3-1/4	4	0.63	3-1/4	3-3/4	4	0.63	3-3/4	3-3/4
1-1/2	4	0.50	2-3/4	3-1/4	4	0.75	3-1/2	4	4	0.75	4-1/4	4-1/4
2	4	0.63	3-1/4	3-3/4	8	0.63	3-1/2	4	8	0.63	4-1/4	4-1/4
2-1/2	4	0.63	3-1/2	4	8	0.75	4	4-1/2	8	0.75	4-3/4	4-3/4
3	4	0.63	3-1/2	4	8	0.75	4-1/4	4-3/4	8	0.75	5	5
3-1/2	8	0.63	3-1/2	4	8	0.75	4-1/4	5	8	0.88	5-1/2	5-1/2
4	8	0.63	3-1/2	4	8	0.75	4-1/2	5	8	0.88	5-3/4	5-3/4
5	8	0.75	3-3/4	4-1/4	8	0.75	4-3/4	5-1/4	8	1.00	6-1/2	6-1/2
6	8	0.75	4	4-1/2	12	0.75	4-3/4	5-1/2	12	1.00	6-3/4	6-3/4
8	8	0.75	4-1/4	4-3/4	12	0.88	5-1/2	6	12	1.13	7-1/2	7-3/4
10	12	0.88	4-1/2	5	16	1.00	6-1/4	6-3/4	16	1.25	8-1/2	8-1/2
12	12	0.88	4-3/4	5-1/4	16	1.13	6-3/4	7-1/4	20	1.25	8-3/4	8-3/4
14	12	1.00	5-1/4	5-3/4	20	1.13	7	7-1/2	20	1.38	9-1/4	9-1/4
16	16	1.00	5-1/4	5-3/4	20	1.25	7-1/2	8	20	1.50	10	10
18	16	1.13	5-3/4	6-1/4	24	1.25	7-3/4	8-1/4	20	1.63	10-3/4	10-3/4
20	20	1.13	6-1/4	6-3/4	24	1.25	8	8-3/4	24	1.63	11-1/4	11-1/2
24	20	1.25	6-3/4	7-1/4	24	1.50	9	10	24	1.88	13	13-1/4

Bulk discount on raised and flat face Class 300/ 600/ 900 AISI 310 Forged flanges and 1.4845 Stainless Steel Orifice Flange in India

Stainless Steel 310 Flange Price List

Stainless Steel 310 Flanges Price Per Piece in India	310 SS Flange Price in INR	310 Stainless Steel Flange Price in UAE Dirham	ASTM A182 F310 Flange Price in USD
FLANGES STAINLESS STEEL OD-3 23.8 ID-20MM, THK.25 MM ASTM A-182 F310 Per Piece	1,201	UAE Dirham 58.26	$15.86
STAINLESS STEEL FLANGE 60 150 3 WNRF ASME B 16.47 THK6MM SA 182 F310 Per Piece	1,425	UAE Dirham 69.13	$18.82
FLANGES STAINLESS STEEL : WN RF, 150#, SS 10S BORE, SA/A182GR.F304 Per Kg	228	UAE Dirham 11.08	$3.02
310 SS SAE SPLIT FLANGE HALVES Per Kg	2,615	UAE Dirham 34.54	$126.86
STAINLESS STEEL WNRF FLANGE 310 GR 3/4 NB X 150# Per Kg	853	UAE Dirham 41.38	$11.27

Production Process of 310 SS Flanges

• Raw Materials: The system monitors the quality of all incoming materials in accordance with the substance's raw material test certificate.
• Processing System: At the raw material stage, the material is visually inspected for surface flaws such as cracks, seams, overlaps, pitting, and dimensionality. Before selecting the raw material, a chemical and physical examination is performed.
• Machining: Following the final forging/forming and heat treatment processes, all flanges are transported for machining, which includes preparation, O/D and I/D matching according to dimensional codes.
• Testing: Tensile testing is performed on a sample taken from mother raw material or from lots of flanges in compliance with codes as needed by the purchaser on a universal testing machine that has been calibrated and approved by authorized inspection organizations.
• Finishing: Any steel flanges are pickled and passivated. During pickling, all scale produced during forging/forming operations is removed.
• Marking: Following the final dimensional inspection, each fitting is stamped or tagged with the following information: size, schedule, fittings specification, heat mark, and batch number.

SS 310 Flanges Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
SS 310	0.015 max	2.0 max	0.15 max	0.020 max	0.015 max	24.00 – 26.00	0.10 max	19.00 – 21.00	54.7 min

ASTM A182 F310 Flanges Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
310 – 310S	515	205	40	95	217

310 Stainless Steel Flanges Equivalent Grade

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 310	1.4841	S31000	SUS 310	310S24	20Ch25N20S2	–	X15CrNi25-20

Looking for SS 310 flange manufacturer in India? Petromet Flange can produce as per your drawing, check EN 1092-2 UNS S31000 Stainless Steel Threaded Flanges and SUS 310 Ring Spacers, Spectacle Blind Flange, Spades pressure rating chart

Various Types of Stainless Steel 310 Flanges

ASTM A182 F310 Flange

Stainless Steel 310 Blind Flange

600 LBS SS 310 Expander Flanges

310 SS Spectacle Blind Flange

DIN 1.4841 Weld Neck Flanges

SS 310 Slip On Flange

A182 Gr F310 BLRF Flanges

2500 LBS ASME SA182 F310 SWRF Flanges

ASTM A182 F310 Slip On Flange

150 LBS SS 310 WNRF Flange

A182 F310 SORF Flanges

310 SS Flange

5000 NB 310 SS Threaded Flange

310 Stainless Steel Nipoflange

900 LBS UNS S31000 Tongue & Groove Flange

ASTM A182 Gr F310 Lapped Joint Flange

15 NB Stainless Steel 310 Long Weld Neck Flange

310 Stainless Steel Screwed Flange

1500 LBS SA182 Gr F310 Reducing Flanges

ASME SA182M Stainless Steel 310 Girth Flanges

300 LBS ASTM A182 Grade F310 Socket Weld Flange

Stainless Steel 310 Ring Joint Flange

ASTM A182 Gr F310 Orifice Flanges

310 Stainless Steel Blind Flange

SA182 Gr F310 Flange Tolerance Chart In Mm

Flange		Tolerance Table
D	Inside Diameter (I.D.)	10" and smaller: ±1/32" (0.8 mm) 12" thru 18": +1/8" (3.2 mm) 20" and larger: -1/16" (1.6 mm)
K	Length of hub	10" and smaller: ±1/16" (1.6 mm) 12" and larger: ±1/8" (3.2 mm)
B	Diameter of contact face	1/16" raised face: ±1/32" (0.8 mm) 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
A	O.D. (Outside Diameter)	When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter) When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
J	Diameter of hub at base	When hub base is 24" or smaller: ±1/16" (1.6 millimeter) When hub base is over 24": ±1/8" (3.2 millimeter)
P	Drilling	Circle Bolts: ±1/16" (1.6 mm) Bolts hole spacing: ±1/32" (0.8 mm)
	Eccentricity of bolt circle with respect to facing	2 1/2" and smaller ±1/32" (0.8 mm) maximum 3" and larger ±1/16" (1.6 mm) maximum
H	Diameter of hub at point of welding	5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm) 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
C	Thickness	18" and smaller: ±1/8" (3.2 mm), -0" 20" and larger: ±3/16" (4.8 mm), -0"

310 SS Flange Bolt Torque Chart

BOLT DIA	Torque FT-LBS
	30% Initial Torque	70% Torque	100% Final Torque
1/2	16	36	52
9/16	23	53	75
5/8	31	73	104
3/4	55	129	184
7/8	71	166	237
1	107	249	356
1.1/8	127	297	424
1.1/4	179	417	596
1.3/8	186	435	622
1.1/2	246	574	821
1.9/16	168	392	560
1.5/8	191	445	636
1.3/4	240	561	801
1.7/8	298	696	994
2	366	853	1219
2.1/4	529	1234	1762
2.1/2	733	1709	2442
2.3/4	986	2300	3285
3	1289	3008	4297

Material Testing of 310 Stainless Steel RTJ Flange

• Pitting Resistance Test
• Direct-reading Spectrograph
• X-ray detector
• Magnetic particle detector
• Flattening Test
• PMI Testing
• Hardness Test
• Flaring Test
• UI trasonic flaw detector
• Hydrostatic testing machine

Stainless Steel Grade 310 Flange Application

• Marine Applications
• Fossil Fuel Power Plants
• Power Plants
• Ship Building
• Refineries
• Nuclear Plants
• Oil & Gas Industry
• Paper & Pulp

310 Stainless Steel Blind Flange Dimensions

Size in Inch	Size in mm	ISO Stud Size	RF Height	Outer Dia.	RF Dia.	Hole Size	PCD	No of Bolts	Bolt Size UNC	Flange Thickness	RF Stud Length	Weight in kg
			D	A	C		E			B
1/2	15	M20	7	135	34.9	7/8	88.9	4	3/4	30.2	120	3.2
3/4	20	M20	7	140	42.9	7/8	95.2	4	3/4	31.8	125	3.7
1	25	M24	7	160	50.8	1	108	4	7/8	35	140	5
1 1/4	32	M27	7	185	63.5	1 1/8	130.2	4	1	38.1	150	7.8
1 1/2	40	M30	7	205	73	1 1/4	146	4	1 1/8	44.5	170	10.5
2	50	M27	7	235	92.1	1 1/8	171.4	8	1	50.9	180	18
2 1/2	65	M30	7	265	104.8	1 1/4	196.8	8	1 1/8	57.2	195	25.5
3	80	M33	7	305	127	1 3/8	228.6	8	1 1/4	66.7	220	39
4	100	M39	7	355	157.2	1 5/8	273	8	1 1/2	76.2	255	61.5
5	125	M45	7	420	185.7	1 7/8	323.8	8	1 3/4	92.1	300	102
6	150	M52	7	485	215.9	2 1/8	368.3	8	2	108	345	157
8	200	M52	7	550	269.9	2 1/8	438.2	12	2	127	380	241
10	250	M64	7	675	323.8	2 5/8	539.8	12	2 1/2	165.1	490	470
12	300	M72	7	760	381	2 7/8	619.1	12	2 3/4	184.2	540	575

SS 310 Slip On Flange Dimensions

Size in Inch	Size in mm	No of Bolts	Outer Dia.	Hub OD	ISO Stud Size	Flange Length	RF Height	Flange Thick.	RF Dia.	PCD	Hole Size	Socket Bore	Weight in kg
			A	C		D	F	B	E	G		H
1/2	15	4	90	30	M14	14	2	9.6	34.9	60.3	5/8	22.2	0.8
1	25	4	110	49	M14	16	2	12.7	50.8	79.4	5/8	34.5	0.9
3/4	20	4	100	38	M14	14	2	11.2	42.9	69.9	5/8	27.7	0.9
1 1/4	32	4	115	59	M14	19	2	14.3	63.5	88.9	5/8	43.2	1.4
2	50	4	150	78	M16	24	2	17.5	92.1	120.7	3/4	61.9	2.3
1 1/2	40	4	125	65	M14	21	2	15.9	73	98.4	5/8	49.5	1.4
2 1/2	65	4	180	90	M16	27	2	20.7	104.8	139.7	3/4	74.6	3.2
3	80	4	190	108	M16	29	2	22.3	127	152.4	3/4	90.7	3.7
4	100	8	230	135	M16	32	2	22.3	157.2	190.5	3/4	116.1	5.9
3 1/2	90	8	215	122	M16	30	2	22.3	139.7	177.8	3/4	103.4	5
5	125	8	255	164	M20	35	2	22.3	185.7	215.9	7/8	143.8	6.8
8	200	8	345	246	M20	43	2	27	269.9	298.5	7/8	221.5	13.7
10	250	12	405	305	M24	48	2	28.6	323.8	362	1	276.2	19.5
6	150	8	280	192	M20	38	2	23.9	215.9	241.3	7/8	170.7	8.6
12	300	12	485	365	M24	54	2	30.2	381	431.8	1	327	29
24	600	20	815	663	M33	81	2	46.1	692.2	749.3	1 3/8	616	100
16	400	16	595	457	M27	62	2	35	469.9	539.8	1 1/8	410.5	54
18	450	16	635	505	M30	67	2	38.1	533.4	577.9	1 1/4	461.8	59
14	350	12	535	400	M27	56	2	33.4	412.8	476.3	1 1/8	359.2	41
20	500	20	700	559	M30	71	2	41.3	584.2	635	1 1/4	513.1	75

Dimensions Table of ASTM A182 F310 Weld Neck Flanges

Flange NPS	H	Inside Diameter	Flat Face Thickness (T2)	Outside Diameter	Raised Face (RF)	Raised Face (R)	H1	Raised Face Thickness (T)	T1	Bolt Circle (BC)	Bolt Hole (B)	No. of Bolt Holes
1/2"	1.19"	0.62"	1.82"	3.50"	.063"	1.38"	0.84"	1.88"	.38"	2.38"	.62"	4
1-1/4"	2.31"	1.38"	2.19"	4.62"	.063"	2.50"	1.66"	2.25"	.56"	3.50"	.62"	4
3/4"	1.50"	0.82"	2.00"	3.88"	.063"	1.69"	1.05"	2.06"	.44"	2.75"	.62"	4
1-1/2"	2.56"	1.61"	2.38"	5.00"	.063"	2.88"	1.90"	2.44"	.62"	3.88"	.62"	4
1"	1.94"	1.05"	2.13"	4.25"	.063"	2.00"	1.32"	2.19"	.50"	3.12"	.62"	4
2"	3.06"	2.07"	2.44"	6.00"	.063"	3.62"	2.38"	2.50"	.69"	4.75"	.75"	4
2-1/2"	3.56"	2.47"	2.69"	7.00"	.063"	4.12"	2.88"	2.75"	.82"	5.50"	.75"	4
3"	4.25"	3.07"	2.69"	7.50"	.063"	5.00"	3.50"	2.75"	.88"	6.00"	.75"	4
4"	5.31"	4.03"	2.94"	9.00"	.063"	6.19"	4.50"	3.00"	.88"	7.50"	.75"	8
5"	6.44"	5.05"	3.44"	10.00"	.063"	7.31"	5.56"	3.50"	.88"	8.50"	.88"	8
3-1/2"	4.81"	3.55"	2.75"	8.50"	.063"	5.50"	4.00"	2.81"	.88"	7.00"	.75"	8
6"	7.56"	6.07"	3.44"	11.00"	.063"	8.50"	6.63"	3.50"	.94"	9.50"	.88"	8
8"	9.69"	7.98"	3.94"	13.50"	.063"	10.62"	8.63"	4.00"	1.06"	11.75"	.88"	8
22"	24.25"	21.25"	5.82"	29.50"	.063"	25.25"	22.00"	5.88"	1.75"	27.25"	1.38"	20
10"	12.00"	10.02"	3.94"	16.00"	.063"	12.75"	10.75"	4.00"	1.13"	14.25"	1.00"	12
12"	14.38"	12.00"	4.44"	19.00"	.063"	15.00"	12.75"	4.50"	1.19"	17.00"	1.00"	12
16"	18.00"	15.25"	4.94"	23.50"	.063"	18.50"	16.00"	5.00"	1.38"	21.25"	1.12"	16
18"	19.88"	17.25"	5.44"	25.00"	.063"	21.00"	18.00"	5.50"	1.50"	22.75"	1.25"	16
14"	15.75"	13.25"	4.94"	21.00"	.063"	16.25"	14.00"	5.00"	1.32"	18.75"	1.12"	12
20"	22.00"	19.25"	5.63"	27.50"	.063"	23.00"	20.00"	5.69"	1.63"	25.00"	1.25"	20
24"	26.12"	23.25"	5.94"	32.00"	.063"	27.25"	24.00"	6.00"	1.82"	29.50"	1.38"	20